EP0124056B1 - Process for coating insulations based on hard polyurethane foams - Google Patents

Process for coating insulations based on hard polyurethane foams Download PDF

Info

Publication number
EP0124056B1
EP0124056B1 EP84104540A EP84104540A EP0124056B1 EP 0124056 B1 EP0124056 B1 EP 0124056B1 EP 84104540 A EP84104540 A EP 84104540A EP 84104540 A EP84104540 A EP 84104540A EP 0124056 B1 EP0124056 B1 EP 0124056B1
Authority
EP
European Patent Office
Prior art keywords
coating
solvent
fire
foam
polyurethane foams
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP84104540A
Other languages
German (de)
French (fr)
Other versions
EP0124056A3 (en
EP0124056A2 (en
Inventor
Heinz-Wilhelm Dr. Friebe
Ralf Witte
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rheinhold and Mahla GmbH
Original Assignee
Rheinhold and Mahla GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rheinhold and Mahla GmbH filed Critical Rheinhold and Mahla GmbH
Publication of EP0124056A2 publication Critical patent/EP0124056A2/en
Publication of EP0124056A3 publication Critical patent/EP0124056A3/en
Application granted granted Critical
Publication of EP0124056B1 publication Critical patent/EP0124056B1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/02—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/56—Three layers or more
    • B05D7/58—No clear coat specified
    • B05D7/587—No clear coat specified some layers being coated "wet-on-wet", the others not
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/56—Three layers or more
    • B05D7/58—No clear coat specified
    • B05D7/584—No clear coat specified at least some layers being let to dry, at least partially, before applying the next layer

Definitions

  • the invention relates to a method for coating heat or cold insulation based on rigid polyurethane foams to improve the fire behavior of the insulation, the insulation in a first step using a dispersion-bound, solvent-free, non-porous, elastic, sealing the foam, inorganic pigments, fillers and / or fibers are coated with various flame retardant additives containing coating agents in an amount of 0.5 to 5 kg / m 2 .
  • Such a coating is known from "Chemical Abstracts", vol. 88, no. 26, dated June 26, 1978, p. 43 under no. 192104y. Thereafter, rigid polyurethane foams are provided with a layer of rubber latex, which contains metal hydroxides to improve the fire behavior, to improve the fire behavior.
  • Aluminum hydroxide has been used as the metal hydroxide.
  • Rigid polyurethane foams of this type for example hard polyurethane spray foams with a density range of 40 to 100 kg / m 3, preferably 50 to 80 kg / m 3, are used to a large extent for the production of heat or cold insulation of metal containers or pipelines.
  • Such foams have the advantage of excellent heat or cold insulation, but have the disadvantage of poor fire behavior.
  • these foams can be assigned to fire classes B3 or B2, depending on their chemical composition and their content of flame retardant additives.
  • the invention is therefore based on the object of improving the fire behavior of such insulation in such a way that the insulation can be assigned to fire class B1, but this cannot be achieved solely with the coating described at the beginning.
  • insulations based on rigid polyurethane foams of the above-mentioned density range are provided with two layers of very specific coating agents in addition to the known coating.
  • the type of coating can be carried out using any coating technology methods, such as spraying, rolling or brushing.
  • the coating compositions are preferably applied by spraying.
  • a dispersion-bound, solvent-free coating agent which contains inorganic, ie non-combustible pigments, fillers and / or fibers with various flame retardant additives, and which dries on the foam to form a non-porous elastic layer that closes the foam .
  • This coating composition generally has a viscosity of about 10,000 to 50,000 mPa.s at 25 ° C., a density of about 1.2 to 1.6 g / cm 3 and a solids content of about 50 to 80, preferably 60 to 70% by weight.
  • this first coating agent is generally applied in an amount of 0.5 to 5, preferably 1.2 to 2 kg / m 2 .
  • the first layer is coated wet-on-wet or, preferably, after the first layer has dried on, with a second coating agent, which is either coated with a dispersion-bound or solvent-containing coating agent, which does not have a heat-insulating effect under the action of fire or heat radiation forms a combustible foam layer.
  • the coating agents suitable for this can be inorganic, i.e. contain non-combustible pigments, fillers and / or fibers together with components that form a foam layer.
  • the solids content of these coating compositions is generally between 40 and 80, preferably 60 and 75% by weight.
  • the second coating agent is generally applied in a coating amount of 0.2 to 0.8, preferably 0.4 to 0.5 kg / m 2.
  • a protective lacquer which generally consists of a pigmented, flame-retardant, solvent-based paint and serves to protect the surface of the fire protection coating that forms the insulation.
  • the coating amount of this protective lacquer is generally 50 to 500, preferably 100 to 300 g / m 2 .
  • the three-layer coating of the foam insulation according to the invention ensures that the insulation originally assigned to fire class 3 can now be assigned to fire class 1.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Cookers (AREA)

Description

Die Erfindung bezieht sich auf ein Verfahren zur Beschichtung von Wärme- bzw. Kälteisolierungen auf Basis von Polyurethan-Hartschaumstoffen zur Verbesserung des Brandverhaltens der Isolierungen, wobei die Isolierungen in einem ersten Arbeitsgang mit einem dispersionsgebundenen, lösungsmittelfreien, nicht porösen, elastischen, den Schaum abschließenden, anorganische Pigmente, Füllstoffe und/oder Fasern mit verschiedenen flammhemmenden Zusätzen aufweisenden Beschichtungsmittel in einer Menge von 0,5 bis 5 kg/m2 beschichtet werden.The invention relates to a method for coating heat or cold insulation based on rigid polyurethane foams to improve the fire behavior of the insulation, the insulation in a first step using a dispersion-bound, solvent-free, non-porous, elastic, sealing the foam, inorganic pigments, fillers and / or fibers are coated with various flame retardant additives containing coating agents in an amount of 0.5 to 5 kg / m 2 .

Eine derartige Beschichtung ist aus "Chemical Abstracts", Bd. 88, Nr. 26, vom 26.06.1978, S. 43 unter Nr. 192104y bekannt. Danach werden Polyurethan-Hartschaumstoffe zur Verbesserung des Brandverhaltens mit einer Schicht von Gummilatex, der zur Verbesserung des Brandverhaltens Metallhydroxyde enthält, versehen. Dabei sind als Metallhydroxyde Aluminiumhydroxyd verwendet worden.Such a coating is known from "Chemical Abstracts", vol. 88, no. 26, dated June 26, 1978, p. 43 under no. 192104y. Thereafter, rigid polyurethane foams are provided with a layer of rubber latex, which contains metal hydroxides to improve the fire behavior, to improve the fire behavior. Aluminum hydroxide has been used as the metal hydroxide.

Derartige Polyurethan-Hartschaumstoffe, beispielsweise harte Polyurethan-Spritzschaumstoffe mit einem Dichtebereich von 40 bis 100 kg/m3 vorzugsweise 50 bis 80 kg/m3 werden in großem Umfang zur Herstellung von Wärme- bzw. Kälteisolierungen von Metallbehältern oder -rohrleitungen eingesetzt. Derartige Schaumstoffe haben zwar den Vorteil einer ausgezeichneten Wärme- bzw. Kälteisolierung, weisen aber den Nachteil eines schlechten Brandverhaltens auf. Im allgemeinen sind diese Schaumstoffe je nach ihrer chemischen Zusammensetzung und je nach ihrem Gehalt an flammhemmenden Zusatzstoffen den Brandklassen B3 oder allenfalls B2 zuzuordnen.Rigid polyurethane foams of this type, for example hard polyurethane spray foams with a density range of 40 to 100 kg / m 3, preferably 50 to 80 kg / m 3, are used to a large extent for the production of heat or cold insulation of metal containers or pipelines. Such foams have the advantage of excellent heat or cold insulation, but have the disadvantage of poor fire behavior. In general, these foams can be assigned to fire classes B3 or B2, depending on their chemical composition and their content of flame retardant additives.

Der Erfindung liegt daher die Aufgabe zugrunde, das Brandverhalten derartiger Isolierungen so zu verbessern, daß die Isolierungen der Brandklasse B1 zugeordnet werden können, was jedoch allein mit der eingangs beschriebenen Beschichtung nicht zu erreichen ist.The invention is therefore based on the object of improving the fire behavior of such insulation in such a way that the insulation can be assigned to fire class B1, but this cannot be achieved solely with the coating described at the beginning.

Zur Lösung der gestellten Aufgabe ist daher erfindungsgemäß vorgesehen, daß die erste Schicht

  • a) in einem zweiten Arbeitsgang mit einem dispersionsgebundenen oder lösungsmittelhaltigen, unter Einwirkung von Feuer oder Wärmestrahlung eine wärmedämmende, nicht brennbare Schaumschicht bildenden Beschichtungsmittel mit einer Menge von 0,2 bis 0,8 kg/m2 beschichtet und
  • b) die gemäß a) erhaltene zweite Schicht in einem dritten Arbeitsgang mit einem Schutzlack auf Basis eines lösungsmittelhaltigen, pigmentierten Anstrichmittels versehen wird.
To solve the problem, the invention therefore provides that the first layer
  • a) coated in a second operation with a dispersion-bound or solvent-containing, under the action of fire or heat radiation forming an insulating, non-combustible foam layer with an amount of 0.2 to 0.8 kg / m 2 and
  • b) the second layer obtained according to a) is provided in a third step with a protective lacquer based on a solvent-containing, pigmented paint.

Bei der Durchführung des erfindungsgemäßen Verfahrens werden Isolierungen auf Basis von Polyurethan-Hartschaumstoffen des oben genannten Dichtebereiches neben der bekannten Beschichtung mit zwei Schichten ganz bestimmter Beschichtungsmittel versehen. Die Art der Beschichtung kann nach beliebigen Methoden der Beschichtungstechnologie wie beispielsweise Spritzen, Rollen oder Streichen erfolgen. Vorzugsweise werden die Beschichtungsmittel durch Spritzen aufgetragen.When carrying out the method according to the invention, insulations based on rigid polyurethane foams of the above-mentioned density range are provided with two layers of very specific coating agents in addition to the known coating. The type of coating can be carried out using any coating technology methods, such as spraying, rolling or brushing. The coating compositions are preferably applied by spraying.

Zur Herstellung der ersten Schicht wird ein dispersionsgebundenes, lösungsmittelfreies Beschichtungsmittel verwendet, welches anorganische, d.h. nicht brennbare Pigmente, Füllstoffe und/oder Fasern mit verschiedenen flammhemmenden Zusatzmitteln enthält, und welches auf dem Schaumstoff unter Bildung einer nicht-porösen elastischen, den Schaum abschließenden Schicht auftrocknet. Dieses Beschichtungsmittel weist im allgemeinen bei 25°C eine Viskosität von ca. 10 000 bis 50 000 mPa.s, eine Dichte von ca. 1,2 bis 1,6 g/cm3 und einen Feststoffgehalt von ca. 50 bis 80, vorzugsweise 60 bis 70 Gew.-% auf. Dieses erste Beschichtungsmittel wird bei der Durchführung des erfindungsgemäßen Verfahrens im allgemeinen mit einer Menge von 0,5 bis 5, vorzugsweise 1,2 bis 2 kg/m2 aufgetragen.For the production of the first layer, a dispersion-bound, solvent-free coating agent is used, which contains inorganic, ie non-combustible pigments, fillers and / or fibers with various flame retardant additives, and which dries on the foam to form a non-porous elastic layer that closes the foam . This coating composition generally has a viscosity of about 10,000 to 50,000 mPa.s at 25 ° C., a density of about 1.2 to 1.6 g / cm 3 and a solids content of about 50 to 80, preferably 60 to 70% by weight. When carrying out the process according to the invention, this first coating agent is generally applied in an amount of 0.5 to 5, preferably 1.2 to 2 kg / m 2 .

Im Anschluß an die Herstellung der ersten Schicht wird diese naß-in-naß oder aber vorzugsweise nach Auftrocknen der ersten Schicht mit einem zweiten Beschichtungsmittel beschichtet, welches entweder aus einem dispersionsgebundenen oder lösungsmittelhaltigen Beschichtungsmittel beschichtet, welches bei Einwirkung von Feuer oder Wärmestrahlung eine wärmedämmende, nicht brennbare Schaumschicht bildet. Die hierfür geeigneten Beschichtungsmittel können anorganische, d.h. nicht brennbare Pigmente, Füllstoffe und/oder Fasern zusammen mit schaumschichtbildenden Komponenten enthalten. Der Feststoffgehalt dieser Beschichtungsmittel liegt im allgemeinen zwischen 40 und 80, vorzugsweise 60 und 75 Gew.-%. Das zweite Beschichtungsmittel wird im allgemeinen in einer Beschichtungsmenge von 0,2 bis 0,8, vorzugsweise 0,4 bis 0,5 kg/m2 aufgetragen.Following the production of the first layer, it is coated wet-on-wet or, preferably, after the first layer has dried on, with a second coating agent, which is either coated with a dispersion-bound or solvent-containing coating agent, which does not have a heat-insulating effect under the action of fire or heat radiation forms a combustible foam layer. The coating agents suitable for this can be inorganic, i.e. contain non-combustible pigments, fillers and / or fibers together with components that form a foam layer. The solids content of these coating compositions is generally between 40 and 80, preferably 60 and 75% by weight. The second coating agent is generally applied in a coating amount of 0.2 to 0.8, preferably 0.4 to 0.5 kg / m 2.

Nach Fertigstellung der genanten zweiten Schicht wird diese abschließend mit einem Schutzlack versehen, der im allgemeinen aus einem pigmentierten, schwer entflammbaren Anstrichmittel auf Lösungsmittelbasis besteht und zum Schutz der Oberfläche der dämmschutzbildenden Brandschutzbeschichtung dient. Die Beschichtungsmenge dieses Schutzlacks liegt im allgemeinen bei 50 bis 500, vorzugsweise 100 bis 300 g/m2.After completion of the second layer mentioned, it is finally provided with a protective lacquer, which generally consists of a pigmented, flame-retardant, solvent-based paint and serves to protect the surface of the fire protection coating that forms the insulation. The coating amount of this protective lacquer is generally 50 to 500, preferably 100 to 300 g / m 2 .

Beispielexample

Ein mit einer 140 mm dicken Isolierung aus tiefkaltzähem, hartem Polyurethan-Spritzschaum der Rohdichte 63 kg/m3 versehener Ethylentank wird erfindungsgemäß wie folgt beschichtet:

  • a) In einem ersten Arbeitsgang wird die Schaumisolierung per Spritzauftrag mit einer Brandschutzbeschichtung unter Verwendung einer Beschichtungsmenge von 1,5 kg/m2 beschichtet. Die Brandschutzbeschichtung besteht aus einem dispersionsgebundenem, lösungsmittelfreien System anorganischer, nicht brennbarer Pigmente, Füllstoffe und Fasern mit verschiedenen flammhemmenden Zusätzen mit einem Trockensubstanzgehalt von ca. 64 % (FLAMMASTIK®) A (Chemische Fabrik Grünau GmbH, 7918, Illertissen)). Diese Beschichtungsmasse trocknet zu einer nicht-porösen, elastischen, den Schaum abschließenden Schicht auf.
  • b) In Anschluß an den ersten Arbeitsgang wird die gemäß a) erhaltene erste Schicht per Spritzauftrag mit einem dämmschichtbildenden Brandschutz-Anstrichmittel auf Dispersionsbasis (PYROMORSO Dämmschutz (Desowag Bayer Holzschutz GmbH 4000 Düsseldorf)) beschichtet. Die Auftragsmenge beträgt 0,45 kg/m2. Diese zweite Beschichtungsmasse bildet bei Einwirkung von Feuer oder Wärmestrahlung eine nicht brennbare Schaumschicht.
  • c) Im Anschluß an den zweiten Arbeitsgang wird die gemäß b) erhaltene Schicht per Spritzauftrag mit einem Decklack (pigmentiertes Anstrichmitten auf Lösungsmittelbasis) versehen. Als Decklack wird "IGNITECT-FINISH" der Firma Chemische Fabrik Grünau GmbH, 7918 Illertissen, in einer Menge von 0,2 kg/m2 verwendet.
An ethylene tank with 140 mm thick insulation made of extremely tough, hard polyurethane spray foam with a density of 63 kg / m 3 is coated according to the invention as follows:
  • a) In a first step, the foam insulation is spray-coated with a fire protection coating using a coating amount of 1.5 kg / m 2 . The fire protection coating consists of a dispersion-bound, solvent-free system of inorganic, non-flammable pigments, fillers and fibers with various flame retardant additives with a dry matter content of approx. 64% (FLAMMASTIK ® ) A (Chemische Fabrik Grünau GmbH, 7918, Illertissen)). This coating mass dries to a non-porous, elastic, foam-closing layer.
  • b) Subsequent to the first operation, the first layer obtained according to a) is spray-coated with an insulating layer-forming fire protection paint based on dispersion (PYROMORS O insulating protection (Desowag Bayer Holzschutz GmbH 4000 Düsseldorf)). The order quantity is 0.45 kg / m 2 . This second coating mass forms a non-combustible foam layer when exposed to fire or heat radiation.
  • c) Subsequent to the second operation, the layer obtained according to b) is spray-coated with a topcoat (pigmented paints based on solvents). "IGNITECT-FINISH" from Chemische Fabrik Grünau GmbH, 7918 Illertissen, in an amount of 0.2 kg / m 2 is used as the topcoat.

Durch die erfindungsgemäße dreischichtige Beschichtung der Schaumstoffisolierung wird erreicht, daß die ursprünglich der Brandklasse 3 zuzuordnende Isolierung nunmehr der Brandklasse 1 zugeordnet werden kann.The three-layer coating of the foam insulation according to the invention ensures that the insulation originally assigned to fire class 3 can now be assigned to fire class 1.

Claims (1)

  1. A method of coating insulations against heat or cold having a basis of hard polyurethane foams, to improve the fire behaviour of the insulations, where the insulations are coated in a first process stage, with a dispersion-bonded, solvent-free, non-porous and elastic coating medium, which seals off the foam and contains inorganic pigments, fillers and/or fibres with various flame- inhibiting additions, in an amount of 0.5 to 5 kg/m2, characterised in that this coating is
    a) coated in a second process stage, with a dispersion-bonded or solvent-containing coating medium, which forms, under the influence of fire or radiant heat, a thermally-insulating, non- flammable layer of foam, said coating medium being in an amount of 0.2 to 0.8 kg/m2; and
    b) the second coating obtained according to a) is provided, in a third process stage, with a protective lacquer based on a solvent-containing, pigmented paint.
EP84104540A 1983-04-28 1984-04-21 Process for coating insulations based on hard polyurethane foams Expired EP0124056B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833315369 DE3315369A1 (en) 1983-04-28 1983-04-28 METHOD FOR COATING INSULATIONS BASED ON POLYURTHANE RESOURCES
DE3315369 1983-04-28

Publications (3)

Publication Number Publication Date
EP0124056A2 EP0124056A2 (en) 1984-11-07
EP0124056A3 EP0124056A3 (en) 1986-08-27
EP0124056B1 true EP0124056B1 (en) 1988-02-03

Family

ID=6197551

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84104540A Expired EP0124056B1 (en) 1983-04-28 1984-04-21 Process for coating insulations based on hard polyurethane foams

Country Status (6)

Country Link
EP (1) EP0124056B1 (en)
DE (2) DE3315369A1 (en)
DK (1) DK196784A (en)
ES (1) ES8501671A1 (en)
FI (1) FI841561A (en)
NO (1) NO841652L (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT307712B (en) * 1968-02-22 1973-06-12 Suellhoefer Heinz Process for the production of plate-shaped heat and cold insulation elements
DE1923982C3 (en) * 1969-05-10 1978-07-13 Hoechst Ag, 6000 Frankfurt Flameproofing of polyurethane foams
US3934066A (en) * 1973-07-18 1976-01-20 W. R. Grace & Co. Fire-resistant intumescent laminates
JPS5947649B2 (en) * 1976-07-05 1984-11-20 株式会社東洋クオリティワン Method for making hard urethane foam nonflammable
US4122203A (en) * 1978-01-09 1978-10-24 Stahl Joel S Fire protective thermal barriers for foam plastics
CA1227311A (en) * 1982-10-04 1987-09-29 Tessa Malcolm-Brown Protection of expanded material and other flammable materials of low compression strength from fire, especially in structural bearings

Also Published As

Publication number Publication date
ES531919A0 (en) 1984-12-16
DK196784D0 (en) 1984-04-17
DE3469137D1 (en) 1988-03-10
DE3315369A1 (en) 1984-10-31
ES8501671A1 (en) 1984-12-16
FI841561A (en) 1984-10-28
EP0124056A3 (en) 1986-08-27
FI841561A0 (en) 1984-04-18
DK196784A (en) 1984-10-28
EP0124056A2 (en) 1984-11-07
NO841652L (en) 1984-10-29

Similar Documents

Publication Publication Date Title
DE2732062C3 (en) Process for applying a coating of two synthetic resin layers to objects made of glass or ceramic material
DE3009104A1 (en) FIRE-RESISTANT FOAMING EPOXY RESIN AND THE USE THEREOF FOR THE PRODUCTION OF FIRE-RESISTANT LAYERS
DE2039969C3 (en) Self-extinguishing fire protection compound for coating electrical cables. Eliminated in: 2065117
DE2421332C3 (en) Fire protection coating system
DE3504228A1 (en) ANTI-CORROSIVE POLYURETHANE COVER OR - COATING COMPOSITION
DE2524843B2 (en) INHIBITOR COATING FOR SOLID PROPELLANT AND PROCESS FOR ITS MANUFACTURE
DE3783678T2 (en) PRIMER PAINT COMPOSITION.
EP0104350A2 (en) Fire prevention aid
EP0124056B1 (en) Process for coating insulations based on hard polyurethane foams
DE2844693C2 (en)
DE1621948A1 (en) Process for the production of firmly adhering polyurethane coatings on rubber
EP0564712B1 (en) Process for the preparation of three-dimensional structured surface coatings for wall and floor areas and paste therefor
EP0594174B1 (en) Process for treating polyolefin foam particles
DE1923982C3 (en) Flameproofing of polyurethane foams
DE2853445A1 (en) COMPOSITION FOR TREATING A FOAM SUBSTRATE WITH CLOSED CELLS
US2118787A (en) Painting and similar composition
EP1223188B1 (en) Process for preparing powder coated plastic profiles
DE3030116C2 (en) Method of making a multilayer coating
DE2200104A1 (en) FIRE PROTECTION AGENTS FOR METAL AND WOOD
DE2256546A1 (en) CARPET AND ITS PRODUCTION
DE2065117C3 (en) Means for producing a self-extinguishing fire protection compound
DE2815344A1 (en) Carbon material with intermediate adhesive layer contg. antistatic - which is aliphatic sulphonate in water and diffuses to surface rapidly during drying
DE19505464A1 (en) Fire-protective substance for steel, plastics and wood
DE2137271B2 (en) FLAME RETARDANT ADDITIVE IN PLASTICS
DE2157904C3 (en) Process for the treatment of paper or wallpaper webs in order to reduce their flammability

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19840421

AK Designated contracting states

Designated state(s): BE DE FR GB NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE DE FR GB NL

17Q First examination report despatched

Effective date: 19870317

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE FR GB NL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19880203

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19880203

Ref country code: BE

Effective date: 19880203

REF Corresponds to:

Ref document number: 3469137

Country of ref document: DE

Date of ref document: 19880310

EN Fr: translation not filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19881122

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19900627

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19920201